A clone-to-language action, and a fix for sites also running uSync.Complete.

• Add: for a language with no translation yet, clone the content you're currently viewing straight into it, skipping the translation job pipeline entirely — the same one-click clone action from v13, now in the v17 backoffice
• Fix: installing Translation Manager alongside uSync.Complete 17.4.0 could produce a 400 - Read unrecognized type discriminator id 'TranslationProcessingOptions' error on translation requests. Both packages share an underlying dependency, and a version mismatch between them was the cause — now resolved
• Fix: the licence check requests Translation Manager makes now identify themselves properly, matching uSync.Complete's behaviour